Using HP PC Hardware Diagnostics (UEFI) (select models only)
HP PC Hardware Diagnostics is a Unified Extensible Firmware Interface (UEFI) that allows you to run
diagnostic tests to determine if the computer hardware is functioning properly. The tool runs outside of the
operating system to isolate hardware failures from issues that may be caused by the operating system or
other software components.
To start HP PC Hardware Diagnostics UEFI:
1. Turn on or restart the computer, quickly press esc, and then press f2.
The BIOS searches three places for the diagnostic tools, in the following order:
a. Connected USB drive
NOTE: To download the HP PC Hardware Diagnostics (UEFI) tool to a USB drive, see Downloading
HP PC Hardware Diagnostics (UEFI) to a USB device on page 75.
b. Hard drive
c. BIOS
2. Click the type of diagnostic test you want to run, and then follow the on-screen instructions.
NOTE: If you need to stop a diagnostic test while it is running, press esc.
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device
NOTE: Instructions for downloading HP PC Hardware Diagnostics (UEFI) are provided in English only.
1. Go to http://www.hp.com.
2. Click Support & Drivers, and then click the Drivers & Dowloads tab.
3. Enter the product name in the text box, and then click Go.
4. Select your computer model, and then select your operating system.
5. In the Diagnostic section, click HP UEFI Support Environment.
– or –
Click Download, and then select Run.
Windows 8 – Computer Setup (BIOS), MultiBoot, and HP PC Hardware Diagnostics (UEFI) 75
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